Bogie comprising a wheelset drive mounted on bearings

Abstract

A bogie (6) comprises a bogie frame (7). The bogie frame (7) is mounted on bearings (7b) via a first spring device (7a). A wheelset shaft (8) is mounted in the bearings (7b). A wheelset drive (9) concentrically surrounds the wheelset shaft (8) and acts thereupon. The wheelset drive (9) is spring-mounted on the bearings (7b) by means of a second spring device (16) exclusively associated with the wheelset drive (9). A two-level clutch (15) is arranged between the wheelset drive (9) and the wheelset shaft (8).

What is claimed is: 
     
       1. A bogie, comprising:
 a bogie frame; 
 a first spring device; 
 bearings configured to support the bogie frame via the first spring device, wherein the first spring device is directly connected to the bogie frame and the bearings; 
 a wheelset having a wheelset shaft mounted in the bearings; 
 a wheelset drive disposed in concentric surrounding relationship to the wheelset shaft and acting on the wheelset shaft; 
 a second spring device configured to spring-mount the wheelset drive on the bearings, said second spring device being exclusively associated with the wheelset drive and the bearings, wherein the second spring device is directly connected to the wheelset drive and the bearings; and 
 a two-level clutch arranged between the wheelset drive and the wheelset shaft. 
 
     
     
       2. The bogie of  claim 1 , wherein the two-level clutch is configured as a double-toothed clutch. 
     
     
       3. The bogie of  claim 1 , wherein the wheelset has wheels arranged at ends of the wheelset shaft in spaced-apart relation from one another, said bearings being arranged between the wheels of the wheelset. 
     
     
       4. The bogie of  claim 1 , wherein the second spring device is configured as a group of buffer elements made of permanently-elastic material. 
     
     
       5. The bogie of  claim 1 , wherein the second spring device is configured as a group of coil springs. 
     
     
       6. The bogie of  claim 1 , further comprising a gearing mechanism arranged between the wheelset drive and the two-level clutch, said wheelset drive acting on the wheelset shaft via the gearing mechanism. 
     
     
       7. The bogie of  claim 6 , wherein the gearing mechanism is configured as a planetary gear train. 
     
     
       8. The bogie of  claim 7 , wherein the wheelset drive has a rotor shaft, said planetary gear train including a hollow-bored sun wheel arranged in fixed rotative engagement on the rotor shaft of the wheelset drive, said wheelset shaft being connected to a planetary carrier of the planetary gear train in fixed rotative engagement via the two-level clutch. 
     
     
       9. The bogie of  claim 1 , further comprising traction current converters arranged on the bogie and configured to connect the wheelset drive to an electrical power supply. 
     
     
       10. The bogie of  claim 1 , further comprising a car body carrier and a third spring device configured to spring-mount the car body carrier on the bogie frame, said traction current converters being arranged on an underside of the car body carrier.